Rex Dibt WHG - TÜV Overfill Protection Certification

GERMAN INSTITUTE FOR STRUCTURAL ENGINEERING Institution under public law

10829, Berlin, 10 June 2005 Kolonnenstraße 30 L Phone: +49 (0)30 78730-370 Fax: +49 (0)30 78730-320 Ref.: III 13-1.65.16-1/05

National technical approval

Approval number: Z-65.16-233

Applicant: Emerson Process Management Saab Rosemount Tank Radar AB Gamlestadsvägen 18B 402 51 Gothenburg SWEDEN

Subject of approval: Level sensor (radar antenna) with attached measurement transducer of type RTG…. as a continual level measurement device of overfill protectors

Valid until: 30 September 2009

The abovementioned subject of approval is hereby granted national technical approval. This National technical approval is made up of five pages and two appendices. Stamp: German Institute for Structural Engineering

74951 05 Page 2 of the National technical approval no. Z-65.16-233 dated 10 June 2005

I. GENERAL PROVISIONS

1 The National technical approval gives proof of the usefulness and practicality of the subject of the approval in terms of the State Building Regulations.

2 The National technical approval does not replace the authorisations, approvals and certifications required by law for the completion of construction projects.

3 The National technical approval is issued without prejudice to the rights of third parties, in particular private property rights.

4 Without prejudice to further regulations in the “Special provisions”, the producer and distributor of the subject of approval must provide the user/operator of the subject of approval with copies of the National technical approval and must notify them that the National technical approval must be available at the place of use. The authorities involved must be provided with copies of the National technical approval upon request.

5 The National technical approval may only be reproduced in its complete form. The permission of the German Institute for Structural Engineering must be obtained in order for extracts of the document to be published. Texts and images in advertising brochures must not contradict the National technical approval. Translations of the National technical approval must contain the statement “Translation of the original German version which has not been inspected by the German Institute for Structural Engineering”.

6 The National technical approval is issued with the understanding that it can be revoked. The provisions of the National technical approval may be added to or changed at a later date, particularly if this is required as a result of new technical findings. Stamp: German Institute for Structural Engineering

II. SPECIAL PROVISIONS

1 Subject of approval and area of application

(1) The subject of this National technical approval is a continual level measurement device which, as part of an overfill protector, serves to prevent overfilling of containers during the storage of liquids which are hazardous to water. The microwaves produced by the measurement transducer (radar transmitter) are sent to the surface of the liquid via the level sensor (radar antenna). The send signals which are reflected on this surface are received by the antenna. The frequency of the send signal is modulated in a saw tooth pattern between 9.55 Ghz and 10.65 Ghz (FMCW procedure). The send frequency changes proportionally to time during the run time in which the microwaves travel to the liquid surface and back to the antenna. The differential frequency between synchronised send and receive signals is proportional to the run time and therefore also to the distance between the level sensor and the surface of the liquid (empty space). The measured filling level is converted into a binary, electrical signal in the measurement transducer, and this signal can be used to interrupt the filling process or trigger an acoustic and visual alarm in good time before the permitted filling level is reached. (2) The parts of the level sensor which come into contact with the stored liquid, its vapours or condensate are generally made of austenitic CRNiMo steels. Hastelloy, titanium, tantalum, Monel, PPS and fluorosilicon may also be used. Polytetrafluoroethylene (PTFE) must be used for the antennae feeders and PTFE or silica glass for the antennae window. The level sensor with attached measurement transducer may be used for containers under atmospheric conditions and also, depending on the design, for media temperatures of -40 °C to +400 °C and in the case of excess pressures in the container of up to 25 bar. The system parts required for the notification or control equipment and the signal amplifier are not the subject of this National technical approval (refer to Appendix 1 for the structure of the overflow protector). (3) This National technical approval merely provides proof of the functionality of the subject of the approval in the terms of clause (1). (4) The National technical approval is issued without prejudice to the provisions for testing or approval of other legal areas (e.g. 1st Ordinance on the Equipment Safety Act, Low-Voltage Ordinance, Act on the Electromagnetic Compatibility of Equipment, 11th Ordinance on the Equipment Safety Act, Ordinance on Explosion Protection). (5) Due to this National technical approval, the evaluation of compliance and construction authorisation according to § 19 h of the WHG1 cease to apply for the subject of the approval.

2 Provisions for the construction product

2.1 Composition and properties (1) The subject of the approval consists of the level sensor (radar antenna) with the attached measurement transducer (radar transmitter): Type RTG 3.20-.-. (horn antenna) Type RTG 3.30-.-. (parabolic antenna) Type RTG 3.30/A-.-. (parabolic antenna) Type RTG 3.40-.-. (pipe antenna) Stamp: German Institute for Structural Engineering

1WHG: 19 August 2002 Act on the Arrangement of Water Management (Water Management Act)

Type RTG 3.45-.-. (pipe antenna) Type RTG 3.50/.-.-. (array antenna) Type RTG 3.60-.-. (pipe antenna) The complete type designation corresponds to the key code in accordance with the Technical description2. (2) The proof of the functional reliability of the subject of approval in the sense of section 1 clause (1) has been provided in accordance with the “Approval principles for overflow protectors” of the German Institute for Structural Engineering dated May 1999. (3) The parts of the overflow protector that are not the subject of this National technical approval may only be used if they meet the requirements of section 3, “General construction principles”, and section 4, “Special construction principles” of the “Approval principles for overflow protectors” of the German Institute for Structural Engineering, version dated May 1999.

2.2 Production and labelling

2.2.1 Production The level sensor and the measurement transducer may only be produced in the applicant’s plant. They must comply with the documents listed in Appendix 2 of this National technical approval.

2.2.2 Labelling The level sensor and the measurement transducer, their packaging or their delivery note must be labelled with the mark of conformity (C mark) by the producer in accordance with the mark of conformity regulations of the federal states. The labelling may only be made if the requirements as per section 2.3 have been fulfilled. In addition, the parts of the subject of approval must also be equipped with type labelling.

2.3 Proof of conformity

2.3.1 General The confirmation of the conformity of the level sensor and the measurement transducer with the provisions of this National technical approval must be carried out for the production plant using a declaration of conformity from the producer on the basis of a production inspection within the plant and an initial test of the overfill protector by a recognised test centre.

2.3.2 Internal production inspection An internal inspection within the production plant must be introduced and carried out. As part of the internal production inspection, a routine test must be carried out for each overflow protector or its individual parts. The producer must use the routine test to ensure that the components correspond to the tested model and that the overflow protector functions reliably. The results of the internal production inspection must be recorded and evaluated. The records must include a minimum of the following information: - Description of the overflow protector Stamp: German - Type of the inspection or test Institute for - Date of production and testing of the overflow protector Structural - Results of the inspections or tests Engineering - Signature of the person responsible for the internal production inspection.

2Applicant’s technical description for the overflow protector Saab TankRadar Rex type RTG 3 dated 15 March 2004 which was examined by the TÜV Hannover/Sachsen-Anhalt e.V. (Technical Inspection Authority Hanover/Saxony-Anhalt).

The records must be kept for a minimum of five years. They must be provided to the German Institute for Structural Engineering and the responsible senior construction authorities upon request. If the test result is not sufficient then the producer must immediately take the measures needed to remedy the fault. Level sensors and measurement transducers which do not meet the requirements must be treated in such a manner that it will not be possible for them to become mixed up with approval subjects which meet with the requirements. Once the fault has been remedied, the appropriate test must be repeated immediately to the extent that is technically possible and is required for proof that the fault has been remedied.

2.3.3 Initial test of the overflow protector by a recognised test centre The functional tests listed in the “Approval principles for overflow protectors” must be carried out as part of the initial test. If the evidence on which the National technical approval is based was taken from samples from routine production then these tests replace the initial test.

3 Provisions for the design

The level sensor may only be used for liquids hazardous to water against the direct influence, vapours and condensate of which the materials listed under section 1(2) are sufficiently resistant.

4 Provisions for the construction

(1) The level sensor and the measurement transducer must be arranged in accordance with section 1.1 of the Technical description and installed and set up according to sections 5 and 6 of the description. Only companies who are specialists in the installation, servicing, maintenance and cleaning of the overflow protector in terms of § 19 I WHG and which also have knowledge of fire and explosion protection may be commissioned to carry out these activities if they are to be carried out on containers for liquids with flashpoints ≤ 55 °C. (2) The activities has per (1) do not have to be carried out by specialist companies if they are exempt from the obligation to use a specialist company in accordance with state regulations or if the producer of the subject of approval carries out the activities using their own experienced staff. This does not affect the statutory occupational health and safety regulations. (3) Following the alignment of the level measurement device, the parameterisation data must be protected against overwriting (see section 6 of the Technical description).

5 Provisions for use, maintenance, servicing and repeat tests

(1) The overflow protector must be operated according to the “Approval principles for overflow protectors” Appendix 1 “Settings notes for overflow protectors of containers”, and Appendix 2 “Installation and operation guidelines for overflow protectors”. The Appendices of the Technical description must be supplied by the producer. (2) The overflow protector must be tested according to section 8 of the Technical description and in accordance with the requirements of section 6.2 of Appendix 2 of the “Approval principles for overflow protectors” of the German Institute of Structural Engineering (version dated May 1999) at appropriate intervals, but this must be no less than once per year. If there is a risk that the liquid may leave residue on the level sensor (antenna) then this must be tested more regularly. Stamp: German (3) Malfunction and error messages are described in section 4 of the Technical Institute for description. Structural Signature Engineering Dr. (Engineering) Kanning Certified

74951 05 Images

Captions remain unchanged other than Antennen Fenster = Antenna window

Diagram of the overflow protector

(1) Level sensor (4a) Message equipment

(2) Measurement transducer (4b) Control equipment Stamp: German Institute for (3) Signal amplifier (4c) Actuator Structural Engineering

Applicant: Subject of approval: Appendix 1 Overflow protector with continual level National measurement device technical Filling level measurement device approval Saab TankRadar Rex Z-65.16.233 Type RTG 3… Dated 10.06.2005 Appendix 2 of the National technical approval Page 1 (1) Z- 65.16-233 dated 10.06.2005 German Institute of structural engineering

Overflow protector with continual level measurement device for containers used to store liquids that are hazardous to water

Saab Rosemount TankRadar REX type RTG 3…

Test documents

Description Drawing number Issue Year/Week Certification dwg Block Diagram 9150 072-965 1 9906 Transmitter Head Electronics Circuit diagram Signal Processing Card 9150 072-301 1 9907 (SPC) Circuit diagram Relay Output Card 9150 072-304 1 9906 (ROC) Certification dwg. BAS Principal dwg 9150 072-951 1 9851 TH2015-2019 TCH, Tank Connection Horn antenna 9150 066-851 B 9349 TCP, Tank Connection Parabolic 9150 062-713 2 9226 antenna (old version) TCP High Pressure, Tank Connection 9150 062-714 A 9226 Parabolic antenna (old version) TCS, Tank Connection Still Pipe 9150 066-721 A 9306 TCS, Tank Connection Still Pipe High 9150 070-571 2 9645 Pressure TCG, Tank Connection LPG/LNG w. 9150 070-781 2 9809 ball valve TCC, Tank Connection Cone 9150 066-884 2 9724 Antenna Parabolic, (New version) 9240 007-541 1 0104 Principle Drawing RTG 3950 9150 070-954 1 0242 Certification drawing, principal dwg 9150 072-951 4 0242 TH2015-2019

Stamp: German Institute for Structural Engineering

74951 05